[DevTools] Use device metrics emulation implemented in content.

Source/core/inspector/InspectorInstrumentation.idl

Index: Source/core/inspector/InspectorInstrumentation.idl
diff --git a/Source/core/inspector/InspectorInstrumentation.idl b/Source/core/inspector/InspectorInstrumentation.idl
index ae0e02063746803e7c88902848e6b0d5a44a9d1a..3ce1df8efcfc48f28d63a157cec790fc3b1308a1 100644
--- a/Source/core/inspector/InspectorInstrumentation.idl
+++ b/Source/core/inspector/InspectorInstrumentation.idl
@@ -242,12 +242,6 @@ interface InspectorInstrumentation {
     void applyUserAgentOverride(Frame*, String* userAgent);
 
     [Page, Inline=FastReturn]
-    void applyScreenWidthOverride(Frame*, long* width);
-
-    [Page, Inline=FastReturn]
-    void applyScreenHeightOverride(Frame*, long* height);
-
-    [Page, Inline=FastReturn]
     void applyEmulatedMedia(Frame*, String* media);
 
     [Timeline, Resource]
@@ -491,12 +485,6 @@ interface InspectorOverrides {
     [CSS, Inline=FastReturn]
     bool forcePseudoState([Keep] Element* element, CSSSelector::PseudoType pseudoState);
 
-    [Page, Inline=FastReturn]
-    bool shouldApplyScreenWidthOverride(Frame* frame);
-
-    [Page, Inline=FastReturn]
-    bool shouldApplyScreenHeightOverride(Frame* frame);
-
     [Worker, Inline=FastReturn]
     bool shouldPauseDedicatedWorkerOnStart(ScriptExecutionContext* context);